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Home >> Buick >> 2004 >> Park Avenue Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) - 3.8L (L36 & L67) >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Disconnect/Reconnecting Harness Connectors At Powertrain Control Module (PCM)
    GM186521Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the connectors to the PCM.

    Tighten:  Tighten the connectors to 8 N.m (71 in. lb.).

  2. Install the PCM into the air cleaner housing assembly.
    3. Fig 2: Removing/Installing Air Cleaner Top Cover
    GM55493Courtesy of GENERAL MOTORS CORP.
  3. Install the air cleaner top cover.
  4. Connect the negative battery cable.
  5. The replacement PCM will NOT allow secondary air injection (AIR) pump operation until a total of 16.9 km (10 miles) have been accumulated.
  6. The new PCM must be programmed. Refer to Service Programming System (SPS) .
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